Resilient shackle



July 26, 192?. 8

I S. B; HASELTINEL RESILIENT SHACKLE Original Filed Sept. 12, 1925 ig-Jmy w Patented July 26, 1927.

UNITED STATES PATENT OFFICE.

STACY B. HASELTINE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNEASSIGNMENTS, TO

' W. H. MINER, INC., A CORPORATION OF DELAWARE.

RESILIENT SHACKLE.

Application filed September 12, 1923, Serial No. 662,214. RenewedJanuary 12, 1927.

This invention relates to improvements in resilient shackles.

The object of the invention is to provide a resilient shackle adapted tocushion both draft and buff shocks and. which is more especially adaptedfor mine cars.

In the drawing forming a part of this specification, Figure .1 is avertical, longitudinal, sectional view taken centrally through twoadjacent mine oars showing my improvements in connection therewith. Figure 2 is a horizontal, sectional view corresponding substantially to thebroken section line 2-2 of Figure 1. Figure 8 is a vertical, transverse,sectional view corresponding to the section line 3--Z3 of Figure 1. AndFigure t is a detail. plan view of one of the yoke-acting platesemployed with my construction.

In said drawing, each of the mine cars as shown is provided with a heavyflooring 10, the latter being preferably cut away at one end of each caras indicated at 11, to provide a pocket to better acconnnodate theimproved shackle. At the opposite end of each car, the flooring is cutaway on a straight line transversely of the car as indicated at 111, topermit the shackle to be swung out of the way to a position at rightangles to the axis of the car. Each car is further provided withattaching plates 12 and 13 secured to the upper and lower sides of theflooring, respectively, said plates having vertically alined openings toacconunodate the usual coupling pin 11, said openings being elongatedlongitudinally of the car to allow .in ward movement of the pins withrespect to the adjacent car. As shown in Figure 1,, the upper plate 12is preferably upwardly offset in order to provide a greater verticalspace between said plates to accommodate the shackle proper and theplate 13 at that end of each car having pocket to accommodate theshackle has the end portion thereof outwardly and downwardlyinclined tofacilitate the entrance of the shackle between the same and thecorresponding plate 12.

end. The top and bottom walls 15 are provided with vertically alinedsets of elongated openings 1717 at each end through which extend thecoupling pins let, said slots being of a length to permit the desiredcompression stroke of the mechanism. The end wall 116 is adapted tocoact with an angular bulling plate 117 at the corresponding end of thecar, said plate having the vertically disposed portion thereof abuttingthe outer end of the floor, the horizontal portion of the same beingsecured to the upper surface of the floor by bolts, or any othersuitable fastening devices. As clearly shown in Figures 1 and 2, theclosed end of the casin i has its opposite sides rounded off to permitthe necessary free radial swinging movement, and the top and bottombeveled to facilitate entrai'ice between the plates 12 and 13.

The yoke member is preferably in the form of a relatively heavy castinghaving a central spring pocket 18 defined by side arms 1919 andtransversely extending end sections 20 and 21. The end section 20 has anelongated opening 22 therein through which extends a correspondingcoupling pin 14;, said opening being of a len 'th to permit the desiredcompression stroke of the mechanisi'n. he other transverse section 21 ofthe yoke B is provided with a vertically extending, somewhat elongatedrecess 23 open at the end facing the spring pocket and within which isslidingly accommodated, the other coupling pin 14. At the outer end ofthe section 20 is provided a flat transverse bull' ing face 120 adaptedto coact; with butler angle 121 at the corresponding end of'the floor ofthe adjacent car, said angle 121 being in the form of a heavy plate,having the vertically disposed portion thereof abutting the end of thefloor and the horizontal portion fixed to the latter by bolts or anyother suitable means. The section 20 is rounded oil at opposite sidesadjacent the face 120 to permit of the necessary free radial swingingmovement of the shackle.

The two plates C are of like construction and each comprises aflat platesection proper 24, from the inner side of which is extended a verticalflange 25, near one end thereof, said flanges being vertically alinedwhen the parts are assembled as shown in Figure 1. Outwardly of theflange 25, each plate 2% is provided with an integral extension 124 orrestricted width offset toward the center or tion, the casing of thecorresponding ward the left, the yoke B'will be.

ram-

axis of themebha'nism andhaving a rounded end face adapted to abut theinner face of the end wall 116 of the casing A. On the same side of theplate section 24:, the'latter is cut away as indicated'at 26 to forma'p'artial seat for the spring resistance D. Between the flange 25 andthe adjacent end 'tthc plate C, within which is accommodated one of thecoupling pins 14. Similar'slots 28 are provided near the opposite endsofthe/plates C to accommodate the other coupling pin 14. lhe spring'Dis'inse'rted within the pocket 18 of the yoke Band between the top andbottom plates C, one end of said spring bearing upon thetransversesebtion of the yoke *Banld' the other end bearing upon the twoflanges of the yoke-acting plates C.

Meansis alsopreferably provided to retain thesliackle in position'atright angles to the car when uncoupled; and the car is being handled inarestricted space as for example, when'on the' mine hoist. Thismeanspreferably consists of a pair of brackets 29 in the form ofangle platessecured-to one end of each car-at opposite sides thereof, and

'apair of bosses 30 at opposite sides of the casing'A, extendingdownwardly from the bottom wall thereof, each adapted to cooperate witha recess 31in the horizontal portion 32 of one of the angle plates 29.The

angle plates 29 are preferably secured to the vertical portion of thebuffer plate 121, having thevertically extending portion thereof rivetedor otherwise secured thereto. The outer edge portions of the horizontalsections 32 are preferably curved downwardly and adapted to engage withand guide the bosses 30 when theshackle is swung to either side, eachbossbeing provided with a beveled portion 33 to cooperate with thecurved edge bracket 29. Each boss 30 is so positioned with reference tothe pin l-t about which the shackle 'is swung, that it will drop intothe opening 31 of the correspond 'ing bracket 29 when the shackle ismoved to either position at rightangles to the axis of the car, andretain the same in said posi- A being directly supported by thehorizontal portion of the bracket.

With the parts assembled as shown in Figure 1, it is evident that. upona compression andassuming the right hand car to the bailing angle 117will A and the casing A, togetherwith the yokeacting plates C, will movetoward the right,

thus compressing the spring Dagainst the transverse'section' 20 ofthe-yokeB which is held stationary by engagement with the butting angle121. Similarly,upon a draft action and still assuming the'righthand caras the left hand car moves topiilled thereby, thus compressing thespring between stationary,

the latter has an elongated slot 27 the transverse section 20 and theflanges 25, the latter being held stationary by the right hand couplingpin 14, as is also the casing A, in this instance.

From the preceding description considered in connection with thedrawing, it will be observed that the shackle is adapted for pivotalmovement in the event the cars travel over curved sections of track; andthat the spring and yoke members are completely housed within the casingA. All of the parts are of simple construction, readily adapting themfor economical manufacture. Furthermore, the entire arrangement suchthat it may be readily applied to mine cars now in service withoutmaterial alteration to the car and at small expense. 7

I have herein shown and described whatl now consider the preferredmanner of carrying out my invention but the same is merely illustrativeand I contemplate all changes and modifications thatcome within thescope of the claims appended hereto.

I claim:

1. In a resilient shackle of the character described, the combinationwith yoke meaps adapted to be connected with one vehicle to transfer thepulling and buiiing strains thereto, said yoke means being adapted toabut 'said vehicle at a place other than at its point of connectionthereto; of another yoke means adapted to be connected to an adjacentvehicle to transmit pulling and bailing strains thereto;cushioningnieans operatively interposed between said two yoke means;andconnecting elements for effecting connection of said shackle to saidvehicles, each of said elements extending through both of said yokemeans, said yoke means being movable relatively to said connectingelements to compress said cushioning means in buff and draft.

2. In a resilient shackle of the character described, the combinationwith yoke means and a coupling pin adjacentonc end thereof for pivotallyconnecting the latter to a rehicle, said yoke means being engageablewithsaid vehicle beyond said pivotal connection ill Inn

thereto; of another yoke means having a 1 portion disposed on the outerside of said pivotal connection, and a coupling pin adjacent theopposite end of said second yoke means for pivotally connecting it to asecond adjacent vehicle; and cushioning'means operatively interposedbetween said two oke means, said last named yoke means being engageablewith said last named vehicle beyond the pivotal connection thereto, saidfirst named yoke means having a portion operatively extending on theouter side of said latter pivotal connection.

3. In a resilient shackle, the combination with a substantiallyrectangular yoke member having a spring pocket therein and a couplingpin for pivotally connecting the same to one vehicle; of additionalyokeacting means comprising two plates slidably mounted on oppositesides of said first named yoke member, and a coupling pin for pivotallyconnecting said plates to the end of an adjacent vehicle; and a springoperatively interposed between said yoke member and yoke acting plates.

4. In a resilient shackle, the combination with a casing; of a pair ofoppositely disposed yoke-acting plates, disposed within said casing; asecond yoke member slioably mounted between said plates and also withinsaid casing, all of said parts being adapted for attachment to adjacentvehicles; and a spring within said casing operatively intcrposed betweensaid yoke member and the yoke plates.

5. In a resilient shackle of the character described, the combinationwith a casing having vertically alined slots near each end thereof toaccommodate coupling pins, one end of said casing being adapted toengage with the end of the adjacent car to prevent movement of saidcasing in one direction; of a pair of upper and lower plates within saidcasing each having correspondingly disposed and alined openings toaccommodate-said coupling pins, said plates having oppositely extendingflanges near one set of ends thereof; a yoke member slidably mountedbetween said plates and having a spring pocket therein, one end of saidyoke member being adapted to engage with the end of the adjacent car toprevent movement of said yoke member in one direction.

6. In a resilient shackle of the character described, the combinationwith a casing having vertically alined sets of elongated openings ateach end thereof; of a pair of upper and lower plates disposed withinsaid casing and having correspondingly alined slots, said plates havingengagement with one end of said casing; a yoke member slidably mountedbetween said plates and hav ing a spring pocket therein; follower actingflanges on said plates; and a spring in terposed between said flangesand the opposite end of said yoke member and means for operativelyattaching said shackle to adjacent cars.

7. In a car, the combination with a shackle including a casing, yokemeans disposed within said casing, and a second yoke member slidinglymounted relatively to said means; of means for connecting the shackle tothe car for swinging movement in a horizontal plane, whereby, theshackle may be swung out of the way to a position at right angles to thecar; a bracket fixed to the ad jacent end of the car adapted to supportsaid shackle when swung to said position; and inter-engaging retainingmeans on said shackle and bracket.

8. In a resilient shackle of the character described, the combinationwith a yoke having means for engaging one end of a spring; of asecondaryyoke acting means adapted to engage the opposite end of said spring; aspring interposed between said yoke and said yoke acting means; ahousing enclosing the whole; means at opposite ends of said yoke andsaid yoke acting means for attaching same to adjacent vehicles, and forimparting the pulling strains through said members to said springs; andmeans independent of said attaching means whereby said yoke and saidyoke acting means may be moved relatively to absorb the bufling shocks.

In witness that I claim the foregoing I have hereunto subscribed my namethis 8th day of September, 1923.

STACY B. HASELTINE.

